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cloning |
Also found in: Dictionary/thesaurus, Encyclopedia, Wikipedia, Hutchinson | 0.06 sec. |
cloning [klō′ning] a procedure for producing multiple copies of genetically identical organisms or cells or of individual genes. Organisms may be cloned by transplanting blastocysts from one embryo into an empty zona pellucida, or nuclei from the cells of one individual into enucleated oocytes. Cells may be cloned by growing them in culture under conditions that promote cell reproduction. Genes may be cloned by isolating them from the genome of one organism and incorporating them into the genome of an asexually reproducing organism, such as a bacterium or a yeast. cloning see recombinant DNA technology. directional cloning the insertion of a segment of foreign DNA which has a defined polarity, e.g. different restriction enzyme sites at each end, into a plasmid vector. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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AFTER DOLLY: The Uses and Misuses of Human Cloning IAN WILMUT AND ROGER HIGHFIELD Supporters of cloning and the researchers who conducted the consumer survey say the reaction to cloning is actually less reactionary than earlier consumer surveys about milk from cows treated with bovine somatotropin (BST). New York -- A declaration introduced by Honduras, urging United Nations members to outlaw all cloning practices "as they are incompatible with human dignity and the protection of human life" has been adopted. |
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